Continuous–Discrete Time-Observer Design for State and Disturbance Estimation of Electro-Hydraulic Actuator Systems

Sofiane Ahmed Ali; Arnaud Christen; Steven Begg; Nicolas Langlois

doi:10.1109/TIE.2016.2531022

Continuous–Discrete Time-Observer Design for State and Disturbance Estimation of Electro-Hydraulic Actuator Systems

Sofiane Ahmed Ali, Arnaud Christen, Steven Begg, Nicolas Langlois

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper, a continuous-discrete time observer which simultaneously estimates the unmeasurable states and the uncertainties for the electro-hydraulic actuator (EHA) system is presented. The main feature of the proposed observer is the use of an intersample output predictor which allows the users to increase the frequency acquisition of the piston position sensor without affecting the convergence performance. The stability analysis of the proposed observer is proved using Lyapunov function adapted to hybrid systems. To show the efficiency of our proposed observer, numerical simulations and experimental validation involving a control application, which combines the designed observer and a proportional-integral (PI) controller for the purpose of piston position tracking problem, are presented.

Original language	English
Pages (from-to)	4314-4324
Number of pages	11
Journal	Ieee Transactions On Industrial Electronics
Volume	63
Issue number	7
DOIs	https://doi.org/10.1109/TIE.2016.2531022
Publication status	Published - 18 Feb 2016

Bibliographical note

2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Keywords

Continuous–discrete time observers
disturbance observer (DOB)
electro-hydraulic actuator (EHA)
intersample output predictor
sampled data measurements.

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TIE2531022.pdfAccepted author manuscript, 4.81 MBLicence: Unspecified

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Steven Begg
- S.M.Beggbrighton.acuk
- School of Arch, Tech and Eng - Reader
- Centre for Precision Health and Translational Medicine
- Advanced Engineering Centre - Director
Person: Academic

Cite this

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title = "Continuous–Discrete Time-Observer Design for State and Disturbance Estimation of Electro-Hydraulic Actuator Systems",

abstract = "In this paper, a continuous-discrete time observer which simultaneously estimates the unmeasurable states and the uncertainties for the electro-hydraulic actuator (EHA) system is presented. The main feature of the proposed observer is the use of an intersample output predictor which allows the users to increase the frequency acquisition of the piston position sensor without affecting the convergence performance. The stability analysis of the proposed observer is proved using Lyapunov function adapted to hybrid systems. To show the efficiency of our proposed observer, numerical simulations and experimental validation involving a control application, which combines the designed observer and a proportional-integral (PI) controller for the purpose of piston position tracking problem, are presented.",

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note = "2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.",

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AU - Ahmed Ali, Sofiane

AU - Christen, Arnaud

AU - Begg, Steven

AU - Langlois, Nicolas

N1 - 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

PY - 2016/2/18

Y1 - 2016/2/18

N2 - In this paper, a continuous-discrete time observer which simultaneously estimates the unmeasurable states and the uncertainties for the electro-hydraulic actuator (EHA) system is presented. The main feature of the proposed observer is the use of an intersample output predictor which allows the users to increase the frequency acquisition of the piston position sensor without affecting the convergence performance. The stability analysis of the proposed observer is proved using Lyapunov function adapted to hybrid systems. To show the efficiency of our proposed observer, numerical simulations and experimental validation involving a control application, which combines the designed observer and a proportional-integral (PI) controller for the purpose of piston position tracking problem, are presented.

AB - In this paper, a continuous-discrete time observer which simultaneously estimates the unmeasurable states and the uncertainties for the electro-hydraulic actuator (EHA) system is presented. The main feature of the proposed observer is the use of an intersample output predictor which allows the users to increase the frequency acquisition of the piston position sensor without affecting the convergence performance. The stability analysis of the proposed observer is proved using Lyapunov function adapted to hybrid systems. To show the efficiency of our proposed observer, numerical simulations and experimental validation involving a control application, which combines the designed observer and a proportional-integral (PI) controller for the purpose of piston position tracking problem, are presented.

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KW - disturbance observer (DOB)

KW - electro-hydraulic actuator (EHA)

KW - intersample output predictor

KW - sampled data measurements.

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DO - 10.1109/TIE.2016.2531022

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ER -

Continuous–Discrete Time-Observer Design for State and Disturbance Estimation of Electro-Hydraulic Actuator Systems

Abstract

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Keywords

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